The engagement of Harry Butler and Miss Elsa Gibson, a nursing sister from Bool Lagoon, near Naracoorte, was announced in October 1919. They were married on 21st July, 1921, and their honeymoon was spent on the River Murray.
On the first trip that Harry made from Adelaide to Minlaton in the Avro bi-plane, Miss Gibson was a passenger, and they landed on a farm about 5km north-east of the town. They wanted to avoid crowds, and an understanding host and his family hid the plane in a small clump of trees for several days.